Recently moved to Exetel (NBN HFC) and I have this strange issue which I never had in the past. My modem (TP-Link Archer series) has both 2.4GHz and 5GHz settings for wifi network but it doesn't seem to create a 2.4GHz network at all even when both options are activated by default as per modem settigs (for some reason I couldn't just go for any one of the two i.e. 2.4GHz only - trying to do so jams up the modem and then I am having to reboot it). In the past, I always had two different wifi SSIDs created (2.4 GHz and 5GHz) and I could choose to use any.
Anyway, so I don't have any issues with using 5GHz wifi as such, but my Brother printer doesn't detect 5GHz wifi network at all. I tried rebooting modem, printer etc but no luck in getting 5GHz wifi network detected by the printer. If I create a hotspot using my mobile and then connect my computer and printer to that network, it works though so I assume that hotspot network is 2.4GHz. It seems that the printer would need a 2.4GHz network and I always had it in the past. I am not sure what's different this time. Is it Exetel or could it be a potential issue with my modem? How do I overcome this problem?
Also, I don't think the lawnmower issue was ever resolved. A lot of questions remain unanswered on that thread.